Keep-clean device

Abstract

The invention relates to a purification device for inactivating microorganisms, such as bacteria, germs, mold and/or viruses, present in a gaseous medium, in particular air, flowing through the purification device, with an irradiation device for UV irradiation, in particular UV-C irradiation, of the medium, wherein a guiding means flow-connected to the irradiation device is provided for supplying a partial flow of the flow of the medium flowing through the purification device to the irradiation device, wherein at least one further guiding means is provided for guiding a further partial flow and wherein the further guiding means does not open into the irradiation device and/or is guided past the irradiation device and/or is spatially separated and/or flow-separated from the irradiation device.

1 . A purification device for inactivating microorganisms, such as bacteria, germs, mold and/or viruses, present in a gaseous medium, in flowing through the purification device, with an irradiation device—for UV irradiation of the medium, wherein a radiation source is provided in the irradiation device for irradiating the medium and/or the partial flow flowing through the irradiation device, wherein at least one radiation source is provided emitting UV radiation in a wavelength range from 250 to 285 nm,
 wherein a guiding means flow-connected to the irradiation device is provided for supplying a partial flow of the flow of the medium flowing through the purification device to the irradiation device, 
 wherein at least one further guiding means is provided for guiding a further partial flow and wherein the further guiding means does not open into the irradiation device and/or is guided past the irradiation device and/or is spatially separated and/or flow-separated from the irradiation device. 
 
     
     
         2 . The purification device according to  claim 1 , wherein a housing having an inlet and an outlet for the medium is provided, wherein the housing can be flowed through by the flow of the medium conducted through the purification device and/or wherein the irradiation device is arranged in the housing. 
     
     
         3 . The purification device according to  claim 2 , wherein the guiding means fluidically connects the inlet to the irradiation device and/or wherein the further guiding means is fluidically connected to the inlet;
 wherein the further guiding means fluidically connects the inlet to the outlet and/or wherein the guiding means fluidically connects the inlet to the outlet.   
     
     
         4 . The purification device according to  claim 1 , wherein a plurality of further guiding means is provided for conducting a plurality of further partial flows. 
     
     
         5 . The purification device according to  claim 2 , wherein the inlet comprises a plurality of inlet openings and/or wherein the outlet has a plurality of outlet openings;
 wherein at least one inlet opening is associated with the guiding means and/or at least one further inlet opening is associated with the at least one further guiding means; and/or   wherein at least one outlet opening is associated with the guiding means and/or at least one further outlet opening is associated with the at least one further guiding means.   
     
     
         6 . The purification device according to  claim 2 , wherein an outlet means is provided which is flow-connected to the outlet, wherein the guiding means and/or the partial flow exiting from the irradiation device and the at least one further guiding means open into the outlet means for mixing the partial flow exiting from the irradiation device and the at least one further partial flow. 
     
     
         7 . The purification device according to  claim 1 , wherein the purification device is designed in such a way that the partial flow emerging from the irradiation device has a higher velocity, by at least 20%, than the at least one further partial flow. 
     
     
         8 . The purification device according to  claim 1 , wherein a filter device is arranged in the at least one further guiding means and wherein the filter device is designed in such a way that particles with a diameter greater than 1 μm are filtered out of the medium flow. 
     
     
         9 . The purification device according to  claim 2 , wherein a prefilter is arranged upstream of the inlet and/or in the region of the inlet and/or in the guiding means, wherein the prefilter is designed in such a way that particles with a diameter greater than 1 μm are filtered out of the medium flow. 
     
     
         10 . The purification device according to  claim 2 , wherein a blower device is provided for sucking in and/or blowing out the medium. 
     
     
         11 . The purification device according to  claim 10 , wherein the blower device comprises a fan for generating the partial flow in the guiding means from the inlet to the irradiation device, to the outlet, and/or wherein the blower device comprises at least one further fan for generating the at least one further partial flow in the at least one further guiding means from the inlet to the outlet. 
     
     
         12 . The purification device according to  claim 10 , wherein the blower device has an actuating means for controlling the volumetric flow of the partial flow guided into the guiding means and at least one further actuating means for controlling the volumetric flow of the at least one further partial flow guided into the at least one further guiding means. 
     
     
         13 . The purification device according to  claim 1 , wherein the irradiation device is designed to treat a volumetric flow of the partial flow of at least 100 m 3 /h. 
     
     
         14 . The purification device according to  claim 1 , wherein the purification device is designed in such a way that the volumetric flow of the partial flow guided through the guiding means has a proportion of at least 10% of the total volumetric flow of the medium flow flowing through the purification device. 
     
     
         15 . The purification device according to  claim 12 , wherein a control device is provided for controlling, connecting, disconnecting and/or regulating the volumetric flow of the partial flow and/or of the at least one further partial flow, the control device being designed for controlling and/or regulating the actuating means and/or the at least one further actuating means. 
     
     
         16 . The purification device according to  claim 7 , wherein the purification device is designed in such a way that the partial flow emerging from the irradiation device has a higher velocity, by at least 50%, than the at least one further partial flow. 
     
     
         17 . The purification device according to  claim 8 , wherein the filter device is designed in such a way that particles with a diameter greater than 0.5 μm are filtered out of the medium flow. 
     
     
         18 . The purification device according to  claim 12 , wherein the actuating means is a valve and/or a butterfly valve and the at least one further actuating means is a valve and/or a butterfly valve. 
     
     
         19 . The purification device according to  claim 13 , wherein the irradiation device is designed to treat a volumetric flow of the partial flow of between 300 to 600 m 3 /h. 
     
     
         20 . The purification device according to  claim 14 , wherein the purification device is designed in such a way that the volumetric flow of the partial flow guided through the guiding means has a proportion of between 30% and 50% of the total volumetric flow of the medium flow flowing through the purification device.